A: Were you around when the robbery happened? B: Yes, I was. A: Could you explain what you saw? B: I was in the bank at the time of the robbery. A: What did you see? B: I saw a man come in with a gun. A: Did you see his face? B: No. He had a mask on. A: Did he come in with anyone else? B: He was by himself. A: Would you come down to the station for further questioning? B: That shouldn't be a problem.